How did ancient people learn to process potentially deadly foodstuffs to make them edible- like plants that you have to boil multiple times or ferment to get poison out of them?serious replies only

by buterbetterbater

(x/posted r/askreddit) Discovered an native plant in the yard that apparently was used for thousands of years as a starch source but requires a great deal of processing before it won't kill you. How did ancient peoples not give up after the first couple of goes that killed someone to come up with the solutions to make deadly foods edible through complex processing? Like polk salad which has to be boiled several times or this plant, the coontie, which has to be leeched and fermented to remove cyanide

sunagainstgold

Heya, you might want to post this to /r/AskAnthropology as well. :)